Pool aerator

Abstract

A pool aerator for pools with water recirculation circuit includes a hemispherical body and an atmospheric air intake pipe. The body of the aerator includes a rounded plastic object, having in the middle area a cylindrical portion, and at one end with a connecting means to the pool nozzle. The middle portion of the aerator body continues with a hemispherical dome. A Venturi tube made in the form of two intersected frustoconical spaces is positioned in the hemispherical dome. One of the intersected frustoconical spaces functions as an inlet and the other for mixing and discharging water mixed with air. The two axes of the intersected frustoconical spaces form an angle (α) between 10 and 20 degrees. The mixing hole communicates with a vertical cylindrical hole, in which the intake pipe is inserted by sliding, until the inner wall of the frustoconical hole is reached.

The invention claimed is: 
     
       1. A swimming pool aerator provided with a water recirculation circuit, comprising:
 a spray body with a Venturi tube channel and an atmospheric air intake pipe above a pool, wherein:
 said spray body includes a frustoconical plastic tube, provided at a first, smaller diameter end with a connecting means to a recirculating water outlet in the pool, below a pool water level, 
 a second, larger diameter end of the frustoconical plastic tube is a jet outlet of aspirated air together with recirculated water, in pool water, 
 an axis of the frustoconical plastic tube is inclined at an angle (a) between 10-20 degrees to the perpendicular to a base plane of the connecting means, and in a first third of length of the spray body from the end with the connecting means, and 
 said spray body is provided with a cylindrical branch also acting as guide, in which a lower end of the intake pipe is configured to slide until the lower end of the intake pipe reaches an inner wall of the frustoconical plastic tube. 
 
 
     
     
       2. The pool aerator according to  claim 1 , wherein the intake pipe can be made of a single section or of several sections connected to each other. 
     
     
       3. The pool aerator according to  claim 1 , wherein:
 the connecting means is a cylindrical flange threaded on an outside, also having a hollow interior, which is also frustoconical in shape, being connected to the frustoconical plastic tube of the spray body, and 
 the threaded flange is screwed into an existing nozzle in pool wall, thus ensuring installation of the aerator in the pool. 
 
     
     
       4. The pool aerator according to  claim 3 , wherein the intake pipe can be made of a single section or of several sections connected to each other. 
     
     
       5. The pool aerator according to  claim 1 , wherein:
 the air intake pipe includes a plastic pipe having an outer diameter allowing the air intake pipe to slide through the cylindrical guide, and a length that makes an upper third of the air intake pipe rise above the water, and 
 the pipe is closed at an upper end by a plug, and the upper end having a longitudinal slot for air absorption, which reduces noise level during operation. 
 
     
     
       6. The pool aerator according to  claim 5 , wherein the intake pipe can be made of a single section or of several sections connected to each other. 
     
     
       7. A hemispherical pool aerator provided with a water recirculation circuit comprising:
 a spray body made in a form of a Venturi tube and an atmospheric air intake pipe, wherein:
 the body of the aerator includes a rounded plastic object, having in a middle portion a cylindrical portion, which includes an end connected with a pool wall with a connecting means, corresponding to an outlet used for evacuating water recirculated in the pool, 
 the middle portion of the aerator body continues with an area in a form of a hemispherical cap, inside the aerator body, being the Venturi tube made in a form of two frustoconical holes with a common base, 
 one of the frustoconical holes functions as an inlet and the other of the frustoconical holes functions for mixing and discharging water mixed with air, 
 a first frustoconical inlet hole is located between the connecting means having a horizontal axis and a second frustoconical mixing hole, 
 the second frustoconical mixing hole located in the middle of the connecting means and a spherical portion of the aerator body, having a longitudinal axis inclined in relation to the horizontal axis of the frustoconical inlet hole at an angle («) between 10 to 20 degrees, and 
 the second frustoconical mixing hole communicates in a first third from the common base with a cylindrical hole having a vertical axis, in which a lower end of the intake pipe is configured to slide, until an inner wall of the frustoconical mixing and discharge hole is reached. 
 
 
     
     
       8. The pool aerator according to  claim 7 , wherein:
 the connecting means is made in a form of a cylindrical portion with a diameter smaller than the diameter of the middle portion, the connection between them being made by a frustoconical portion, and 
 the connecting means is provided with an external thread corresponding to the outlet used for evacuating recirculated water in the pool. 
 
     
     
       9. The pool aerator according to  claim 8 , wherein:
 the intake pipe is closed at an upper end by a plug, and 
 the intake pipe has an air intake hole at the upper end, the intake hole being hidden under the plug and being round in shape, which reduces level of noise during operation. 
 
     
     
       10. The pool aerator according to  claim 8 , wherein the intake pipe can be made of a single section or of several sections connected to each other. 
     
     
       11. The pool aerator according to  claim 7 , wherein:
 the connecting means of the body of the pool aerator is made in a form of a cylindrical portion, is elongated so that the frustoconical inlet hole continues with a cylindrical hole of the same diameter as a large base of the cone, and 
 said cylindrical hole is threaded inwards corresponding to an outer thread of the outlet used for evacuating recirculated water in the pool. 
 
     
     
       12. The pool aerator according to  claim 11 , wherein:
 the intake pipe is closed at an upper end by a plug, and 
 the intake pipe has an air intake hole at the upper end, the intake hole being hidden under the plug and being round in shape, which reduces level of noise during operation. 
 
     
     
       13. The pool aerator according to  claim 11 , wherein the intake pipe can be made of a single section or of several sections connected to each other. 
     
     
       14. The pool aerator according to  claim 7 , wherein:
 the intake pipe is closed at an upper end by a plug, and 
 the intake pipe has an air intake hole at the upper end, the intake hole being hidden under the plug and being round in shape, which reduces level of noise during operation. 
 
     
     
       15. The pool aerator according to  claim 7 , wherein the intake pipe can be made of a single section or of several sections, connected to each other.